i  = 1:9; for i = 1:9     n = i*0.1;     a(i) = 2*n(i); end plot(i,a,'.')

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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I am trying to practice my for loops in matlab and ran across a problem. I want to plot i vs a where a = 2*n and        n = i*0.1 and i  = 1:9.  I tried the following method but there seems to be an error. Can you fix it for me?

i  = 1:9;

for i = 1:9
    n = i*0.1;
    a(i) = 2*n(i);
end

plot(i,a,'.')

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